REMKO VRS Series - Manual (Page 9)

9
Floor mounting
The heaters must be installed on
stable, flame retardant surfaces
and outside traffic zones, e.g. the
operating areas of cranes.
For the protection of the heaters
against damage in commercial
locations, for unhindered mainte-
nance and repair of the heater and
burner as well as unhindered air
suction and blowing, a protection
zone at a distance of 1 m around
the heating appliance must be kept
free.
This protection zone must be
marked by a sign with the follow-
ing inscription:
A permanent barrier for frequently
accessed areas is recommended.
Wall mounting
The wall to be used for mounting
purposes must be of flame retard-
ant materials. The loading bear-
ing capacity of the wall must be
verified (reinforcements must be
provided if necessary).
The brackets must be firmly fas-
tened to the wall and the heaters
securely fixed to these.
Sufficient free space for main-
tenance of the heat exchanger,
burner, fan and chimney system
must be provided.
■ Operating devices for the
heater and fuel supply must
be able to be operated from
ground level.
■ Where auxiliary equipment is
required for monitoring, main-
tenance and repair, this must be
provided by the operator.
Suspended heater installation
The heaters must only be attached
to constructions designed to take
the weight or to ceilings of flame
retardant materials with sufficient
load bearing capacity.
Attachment must take place using
suitable anchors to be securely
attached to the heater.
The requirements specified in the
Section „Wall mounting“ must be
observed.
Room heating
Hot air heaters must only be oper-
ated in closed rooms and halls via
a room thermostat.
Fuel supply
The fuel supply must be installed in
compliance with the requirements
of DIN 4755 for oil-fired hot air
heaters, DIN 4756 and DVGW
worksheet G 600 for gas-fired hot
air heaters and TRF for liquid gas.
It must be ensured for fuel oil
piping in particular that the cross-
section of the piping is of sufficient
size.
The suction height, total pipe
resistances and increased viscosity
at low temperatures must be taken
into account in dimensioning of
the system.
Suitable, separate oil supply units
must be provided if necessary.
The pipes must be installed so
that they are easy to vent and
protected against corrosion and
mechanical damage.
Electrical installation
It must be ensured that an im-
permissible undervoltage due to
intermittent system overload is not
possible.
The cables used for connection
of the heaters must have a cross-
section of sufficient size in order
to avoid any impermissible voltage
drop when the fans start.
For connection of the 400V
type heaters, the correct phase
sequence of the rotating field
(clockwise) must be ensured.
Incorrect connection can result in
an incorrect direction of rotation of
the fan.
An emergency switch must be pro-
vided at an easily accessible point
in the installation room for heaters
with a nominal heat output from
50 kW.
Protection zone
Keep free at a distance of
1 m
s s s
AttENtION
The measured pressure in the
suction pipe should not exceed
minus 0.3 bar; it can be maxi-
mum minus 0.4 bar.
AttENtION
All switches, if generally ac-
cessible, must be protected
against damage and unauthor-
ised use.
AttENtION
Electrical heater connection
must be carried out by au-
thorised specialists as defined
in DIN EN 60335-1 and VDE
0116.